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ser-zykov [4K]
3 years ago
6

If there os 150 capacity and 36 os used what os the remaining percentage

Mathematics
1 answer:
Veseljchak [2.6K]3 years ago
6 0
150 - 36 = 114 os remaining;
114/150 = 0,76 (as a decimal) = 76% (as a percentage);
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assume that the class has 80 students and that the examination period is 95 minutes in length. How many students do you expect w
Kazeer [188]

Answer:

Number of students successful= 75

Number of students not able to complete the exam in the allotted time= 5

Step-by-step explanation:

In this question the main part is missing .The given statement is the sub part of the problem .

Suppose the main part is

<u><em>The time needed to complete a final examination in a particular college course is normally distributed with a mean of 80 minutes and a standard deviation of 10 minutes. </em></u>

<u><em></em></u>

If the main part was given like this only then we could do the following calculations.

So from above the

Population mean = μ= 80

Population Standard deviation =σ= 10 mins

Sample mean = x`= 95

Sample size= n= 80

Now first we calculate the z= score

z= x`-μ/σ

z= 95-80/10= 1.5

From the z- table we find the P (z< 1.5)= 0.9332

Now we have to find the number of students who need to complete the exam in the allotted time

Number of students successful= np= 80 * 0.9332= 74.656= 75

Number of students not able to complete the exam in the allotted time= 80-75= 5

<u><em>These answers are based on the main part supposed to be as added just to explain how it will be calculated.</em></u>

<u><em>There may be any discrepancy with the original question.</em></u>

5 0
3 years ago
Which expression is equivalent to 3 sqrt32x8y10?
11Alexandr11 [23.1K]

Answer: 2x^{2} y^{3} (\sqrt[3]{4x^{2} y} )

Step-by-step explanation:

\sqrt[3]{32x^{8} y^{10} } =\sqrt[3]{2^{3} \cdot 2^{2}  \cdot x^{2} \cdot (x^{2} )^{3} \cdot y \cdot (y^{3})^{3}  } =2x^{2} y^{3} (\sqrt[3]{4x^{2} y} )

6 0
3 years ago
Read 2 more answers
What is the coefficient of the term x5y7 in the expansion of (x - y)12 ?
lozanna [386]

Answer:

12 and -12

Step-by-step explanation:

12x-12y is the expansion using the distributive property, so the coefficient of x is 12 and the coefficient of y is -12

6 0
3 years ago
What's the slope and y-intercept?
Shtirlitz [24]

Answer:

Slope: 2; Y-Intercept: (0,3)

Step-by-step explanation:

As you can see from the graph, it rises 4 and runs 2. So, the slope is 2. It intersects the y axis at (0,3)

4 0
2 years ago
Read 2 more answers
Minor surgery on horses under field conditions requires a reliable short-term anesthetic producing good muscle relaxation, minim
iren [92.7K]

Answer:

We accept  H₀

Step-by-step explanation:

Normal Distribution

size sample   n  = 69

sample mean  18.94

standard deviation  8.3

Is a one tailed-test to the left we are traying of find out is we have enough evidence to say that the mean is less than 20 min.

1.-Test hypothesis                              H₀         ⇒   μ₀  =  20

   Alternative hypothesis                  Hₐ         ⇒    μ₀  < 20

2.- Critical value

for α = 0.1  we find from z Table

z(c) = - 1.28

3.-We compute z(s)

z(s) = [ (  μ  -  μ₀ ) / (σ/√n)                ⇒    z(s) = [( 18.94  -  20  )*√69)/8.3]

z(s) = ( -1.06)*8.31/8.3                    

z(s) =  - 1.061

4.- We compare

z(c)   and z(s)           -1.28 > -1.061

Then z(c)    >  z(s)

z(s) in inside acceptance region  so we accept H₀

5 0
3 years ago
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